At the school bookstore, quinn purchased a binder for $4.75 and 4 pens for $0.79 each. what was quinn's total cost

Quinn's total cost was $7.91.

Step-by-step explanation:

You already know the binder is $4.75 so that remains the same.

You have to find the total cost for all the 4 pens:

$0.79

x      4

$3.16

Add up the cost of the binder w/ the cost of the 4 pens:

$4.75

+

$3.16

$7.91

➴ Hope this helps!

➳CloutAnswers

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: